Counterbalanced stair.



E. L. KEULlNG.

COUNTERBALANCED STAIR.

APPLICATION man FEB. 21, x915.

Patented May 25, 1915.

2 SHEETSSHEET I.

anuewtox ELKE u L! N a my mums Ft 7ER c0. PHOTO I/THO WASHINGTON. u r

E. L. KEULING.

COUNTERBALANCED STAIR.

APPLICATION FILED FEB.27, m5.

l mfi wn Patente May 25, 1915.

2 SHEETS-SHEET 2.

HE NNNNN I5 PETERS CO PHOTO LITHO.. WASHINVPAM n r U'FED EDGAR LOUISKEULING, OF SCRANTON, PENNSYLVANIA.

COUNTER/BALANCED STAIR.

To all whom it may concern Be it known that I, EDGAR LOUIS KEULING, acitizen of the United States, residing at Scranton, in the county ofLackawanna and State of Pennsylvania, have invented certain new anduseful Improvements in Counterbalanced Stairs, of which the following isa specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in counterbalanced stairsand has relation more particularly to a device of this general characterof a balcony type; and an object of the invention is to provide a deviceof this general character including novel and improved means whereby thestair is normally maintained in an inoperative position.

Furthermore, it is an object of the invention to provide a novel andimproved device of this general character including a counter-balancedstair, said counterbalance being engaged with the stair in such a manneras to assure an even distribution of the weight of such counter-balancewhereby the possibility of the stair becoming warped is obviated.

The invention consists in the details of construction and in thecombination and arrangement of the several parts of my improvedcounterbalanced stair whereby certain important advantages are attainedand the device is rendered simpler, less expensive and otherwise moreconvenient and advantageous for use, all as will be hereinafter morefully set forth.

The novel features of the invention will be carefully defined in theappended claim.

In order that my invention may be the better understood, I will nowproceed to describe the same with reference to the accompanyingdrawings, wherein Figure 1 is a view in side elevation of acounterbalanced stair constructed in accordance with an embodiment of myinvention and in applied position; Fig. 2 is a view in front elevationof the device as illustrated in Fig. 1, with the stair in operativeadjustment; and Fig. 3 is a fragmentary view in perspective illustratingin detail certain features of my invention as herein embodied.

As disclosed in the accompanying drawings, F denotes a balcony fireescape of conventional construction having depending from the lowerbalcony B thereof on a predetermined incline the stair section Sterminating a predetermined distance above the Specification of LettersPatent.

Application filed February 27, 1915.

Patented May 25, 1915.

Serial No. 11,006.

ground and having the lower extremities of the sides thereof tied orconnected by the stationary shaft 1 projecting beyond opposite sides ofthe stair S and having secured thereto the lower extremities of thehangers 2, the upper extremities being suitably secured to the bracket 3anchored to the wall W of a building structure.

4 denotes the stiles having their upper extremities provided with theextension stile pieces 5 which are pivotally engaged with the shaft 1 ata point in close proximity to the upper extremities of the stiles, as isbelieved to be clearly shown in the accompanying drawings, and saidextension stile pieces 5 have depending from their free extremities andat right angles thereto the rigid arms 6 and disposed substantially inparallelism with the arms 6 are the arms 7 and 8, the arm 7 beingsecured to the stiles 4 adjacent the upper extremities thereof and tothe extension stile pieces 5 while the arms 8 are secured to the stiles4 at a predetermined distance inwardly of the upper extremities thereofand said arms 6, 7 and 8 are preferably equidistantly spaced.

Secured to the lower extremities of the arms 6, 7 and 8 and disposed inparallelism with the stiles 4 are the elongated members 9 formedpreferably of channel iron and with which is engaged the counter-balance10 and which is adapted to normally maintain the lower stair section inan elevated or inoperative position, as is illustrated by full lines inFig. 1.

As herein embodied, the counter-balance 10 bridges the space between theelongated members 9 and is held against movement longitudinally of saidmembers through the medium of the retaining screws 11. By the particularmounting of the counterweight 10 it will be readily appreciated that theweight thereof is evenly distributed upon the stiles 4 whereby thepossibility of the stiles 4 warping is obviated and the usefulness ofthe device gradually prolonged.

Secured to the outer stile 4 and the adjacent extension stile piece 5 isthe hand rail 12 which may be of any ordinary or preferred construction.

From the foregoing description, it is thought to be obvious that acounterbalanced stair constructed in accordance with my invention is ofan extremely simple and comparatively inexpensive nature and is particularly well adapted for use by reason of the convenience and facilityWith which it may be assembled and it Will also be obvious that myinvention is susceptible of some change and modification Withoutmaterial departure from the principles and spirit thereof and for thisreason I do not Wish to be understood as limiting myself to the precisearrangement and formation of the several parts herein shown in carryingout my invention in practice.

I claim:

A device of the character described comprising a fixed stair section,another stair section. pivotally supported thereby, extension stilepieces carried by the opposite stiles and the extension stile pieces inpredetermined spaced relation, elongated members 20 secured to the freeextremities of said arms,

and a: counter-balance bridging the space between the elongated membersand secured thereto. i

In testimony whereof I hereunto aflix my 25 signature in the presenceoftWo Witnesses;

EDGAR LOUIS KEULING,

'Witnesses:'

J. M. ATHERTON,

J; MEARs.

Gopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. 0.

